This porn video tag refers to a specific category in the adult industry. "Pregnant" indicates that the performer or characters involved are pregnant, often leading to scenes involving belly rubbing, touching, or other types of interaction focused on the expectant mother's body. The term "FTM" stands for Female-to-Male, meaning that the scene may involve a transgender character who was assigned female at birth but identifies as male and is undergoing a gender transition process. Therefore, this tag indicates a scene featuring a pregnant, FTM character participating in sexual activity or being the focus of the video.